Hey guys, I've been reading up about connecting a Beta 58A which is 150 Ohm (pdf spec sheet) and my iPod Touch 4, which apparently has the same circuitry as iPhone 4, which supposedly doesn't detect any mic below 800 Ohm.

This adaptor is designed to match 600R output impedance to 2.5K input impedance. It may be used to connect a microphone to a portable recording device, camcorder, or PC.

I don't know the math of impedance matching so sorry if this is obvious. From that information, can you tell what will be the output impedance of the Beta 58 + MIT-156?

So far the Touch can't detect the rig (works for a computer mic I have though, so my cable adapters that come after the MIT-156 are working fine). And when I connect the mic to the PC via the mic inputs of either an Asus U1 or the built-in IDT sound device (on Windows 7). I get low signal and very loud hiss. What am I missing?

Thanks for the tip(s). I would never have considered that if you didn't tell me. Is this a problem with all such mics or just the way these particular AT ones are constructed? Is it one of the functions of the pop filter to prevent this, as well? I didn't get one cause I would not be using it for vocals closely.

The 2035 has a larger diaphragm as well, and if those specs are even a bit true it should be less noisy, though I don't know if I would notice it the way I'll be using it.